Overview: This is almost identical to the Four-Tower Build, except with one extra tower and slightly lower-level Freeze towers.

Wood rush (or shortened as Log) will completely stop monsters in their tracks if they are in range of a Freeze tower level 5 or greater. So to take advantage of this, a second freeze tower is placed. Level 5 is efficient enough for the Log effect to work, but higher level towers will target more monsters.

A down-side to this build is that Log will freeze the monsters fairly spread out, which takes longer for the Gaias to knock them out, but you will have plenty of TP to continue buffing them for as long as you need.

Hit the jump for detailed tactics.

Tactic:

Set up the first three towers and max the TP buff ASAP. It's not necessary to kill the monsters at the 2x area. (I've never found it necessary to kill in the 2x area, in fact.)

Place the second freeze tower. All towers should be at level 2 at this point.

Level the first Gaia and Freeze tower together. Once the Freeze tower is level 5, focus on the first Gaia until it's level 7.

Upgrade the second Gaia tower to level 7.

Upgrade the first Gaia to level 10.

Upgrade both freeze towers to level 8.

At around level 35 you'll need to start actively Logging the mobs to keep them from passing through the towers.

Upgrade the second Gaia to level 10. This row of towers are now complete. Incidentally, at Stage 42 you should now start buffing the first Gaia tower at the beginning of each stage herein.

Place your final tower and upgrade it to 8. All towers are now complete.

Log the monsters as they pass through the first Freeze tower, buffing the Gaia towers as needed. Make sure not to have any monsters frozen near the spawn point once monsters make the lap around the map and start coming in from the north.